body{
    /* 移除背景色，使视频背景可见 */
    background: transparent;
}
.outer-box{
    width: 854px;
    background: rgba(255, 255, 255, 0.6); /* 半透明背景 */
    backdrop-filter: blur(10px); /* 模糊效果 */
    -webkit-backdrop-filter: blur(10px); /* Safari 兼容 */
    margin: 0 auto;
    overflow: hidden;
    border-radius: 15px; /* 圆角 */
    box-shadow: 0 8px 32px rgba(0, 0, 0, 0.1); /* 阴影效果 */
    border: 1px solid rgba(255, 255, 255, 0.2); /* 细微的边框 */
}
.logo-box{
    text-align: center;
    padding-top: 40px;
}
.logo-box img{
    width: 60px;
    height:60px;
}
.page-title{
    text-align: center;
    color: #333;
    margin: 20px 0;
    font-weight: 600;
    text-shadow: 0 1px 2px rgba(255, 255, 255, 0.5);
}
.sign-box{
    width: 300px;
    margin: 0 auto;
    padding: 30px;
    background: rgba(255, 255, 255, 0.4); /* 半透明背景 */
    border-radius: 10px; /* 圆角 */
    backdrop-filter: blur(5px); /* 轻微模糊效果 */
    -webkit-backdrop-filter: blur(5px); /* Safari 兼容 */
    box-shadow: 0 4px 16px rgba(0, 0, 0, 0.05); /* 轻微阴影 */
    border: 1px solid rgba(255, 255, 255, 0.3); /* 细微的边框 */
    margin-bottom: 30px; /* 底部间距 */
}
.captcha-addon{
    padding: 0;
    overflow: hidden;
    border-radius: 0 4px 4px 0;
}
.captcha-img{
    width: 94px;
    height: 32px;
    cursor: pointer;
}

/* 美化表单元素 */
.form-control {
    background-color: rgba(255, 255, 255, 0.7);
    border: 1px solid rgba(255, 255, 255, 0.3);
    transition: all 0.3s ease;
}

.form-control:focus {
    background-color: rgba(255, 255, 255, 0.9);
    box-shadow: 0 0 8px rgba(91, 134, 229, 0.4);
    border-color: rgba(91, 134, 229, 0.6);
}

/* 美化按钮 */
.btn-warning {
    background: linear-gradient(90deg, #36d1c4 0%, #5b86e5 100%);
    border: none;
    box-shadow: 0 4px 12px rgba(91, 134, 229, 0.3);
    transition: all 0.3s ease;
}

.btn-warning:hover {
    transform: translateY(-2px);
    box-shadow: 0 6px 16px rgba(91, 134, 229, 0.4);
}

/* 美化链接 */
.signup-link, .resetpwd-link {
    color: #5b86e5;
    transition: all 0.3s ease;
    text-decoration: none;
}

.signup-link:hover, .resetpwd-link:hover {
    color: #36d1c4;
    text-decoration: none;
}